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lightning-sunbird  0.9+nobinonly
nsTStringComparator.cpp
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00023  *   Darin Fisher <darin@meer.net>
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00038 
00039 NS_COM int
00040 Compare( const nsTSubstring_CharT::base_string_type& lhs, const nsTSubstring_CharT::base_string_type& rhs, const nsTStringComparator_CharT& comp )
00041   {
00042     typedef nsTAString_CharT::size_type size_type;
00043 
00044     if ( &lhs == &rhs )
00045       return 0;
00046 
00047     nsTAString_CharT::const_iterator leftIter, rightIter;
00048     lhs.BeginReading(leftIter);
00049     rhs.BeginReading(rightIter);
00050 
00051     size_type lLength = leftIter.size_forward();
00052     size_type rLength = rightIter.size_forward();
00053     size_type lengthToCompare = NS_MIN(lLength, rLength);
00054 
00055     int result;
00056     if ( (result = comp(leftIter.get(), rightIter.get(), lengthToCompare)) == 0 )
00057       {
00058         if ( lLength < rLength )
00059           result = -1;
00060         else if ( rLength < lLength )
00061           result = 1;
00062         else
00063           result = 0;
00064       }
00065 
00066     return result;
00067   }
00068 
00069 int
00070 nsTDefaultStringComparator_CharT::operator()( const char_type* lhs, const char_type* rhs, PRUint32 aLength ) const
00071   {
00072     return nsCharTraits<CharT>::compare(lhs, rhs, aLength);
00073   }
00074 
00075 int
00076 nsTDefaultStringComparator_CharT::operator()( char_type lhs, char_type rhs) const
00077   {
00078     return lhs - rhs;
00079   }